WO2000075539A1 - A sealing arrangement and a sealing member therefor - Google Patents

A sealing arrangement and a sealing member therefor Download PDF

Info

Publication number
WO2000075539A1
WO2000075539A1 PCT/DK2000/000305 DK0000305W WO0075539A1 WO 2000075539 A1 WO2000075539 A1 WO 2000075539A1 DK 0000305 W DK0000305 W DK 0000305W WO 0075539 A1 WO0075539 A1 WO 0075539A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing member
peripheral surface
sealing
annular
axial length
Prior art date
Application number
PCT/DK2000/000305
Other languages
English (en)
French (fr)
Inventor
Gert Iversen
Original Assignee
W.S. Shamban Europa A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26064705&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2000075539(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by W.S. Shamban Europa A/S filed Critical W.S. Shamban Europa A/S
Priority to AT00931046T priority Critical patent/ATE286220T1/de
Priority to AU49119/00A priority patent/AU4911900A/en
Priority to JP2001501781A priority patent/JP4588949B2/ja
Priority to EP00931046A priority patent/EP1196704B2/en
Priority to DK00931046.7T priority patent/DK1196704T4/da
Priority to HU0202318A priority patent/HU222789B1/hu
Priority to DE60017142T priority patent/DE60017142T3/de
Priority to PL352773A priority patent/PL195565B1/pl
Publication of WO2000075539A1 publication Critical patent/WO2000075539A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • F16J15/3212—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings with metal springs

Definitions

  • the present invention relates to a sealing arrangement for sealing a space, which extends between high and low pressure areas and which is defined between a first apparatus part and a cylindrical surface of a second apparatus part, the first and second apparatus parts being mutually reciprocatingly movable along the axis of said cylindrical surface.
  • the purpose of the compression ring is to press the contact area of the inner peripheral surface of the sealing member into tight sealing engagement with the cylindrical surface of the second apparatus part. This means that ideally the annular contact area between the compression ring and the outer peripheral surface of the annular sealing member should be positioned radially opposite to the contact area between the sealing member and the cylindrical surface of the second apparatus part.
  • the present invention provides a sealing arrangement for sealing a space, which extends between high and low pressure areas and which is defined between a first apparatus part and a cylindrical surface of a second apparatus part, the first and second apparatus parts being mutually reciprocatingly moveable along the axis of said cylindrical surface
  • said sealing arrangement comprising an annular sealing member of resilient material having a radially outer peripheral surface extending between axially opposite first and second end surfaces facing said high and low pressure areas, respectively, and a radially inner peripheral surface for sealingly engaging with the cylindrical surface of the second apparatus part at a contact area and for defining with the cylindrical surface a first space widening or diverging from said contact area towards the low pressure area, and a compression ring surrounding the annular sealing member, the compression ring being in contact with the outer peripheral surface of the annular sealing member so as to press the inner peripheral surface thereof into close contact with the cylindrical surface of the second apparatus part at said contact area, the axial sectional view of at least part of the outer peripheral surface of the annular sealing member coming into contact with the compression compression
  • the radius or curvature of such roundings preferably does not exceed twice the total axial length or width of the annular sealing member, and in the presently preferred embodiment the radius of radii of curvature is/are at least 0 6 and preferably about 0 85 x the total axial length of the annular sealing member
  • the present invention provides an annular sealing member of resilient material for sealing a space, which extends between high and low pressure areas and which is defined between a first apparatus part and a cylindrical surface of a second apparatus part, said sealing member having a radially outer peripheral surface extending between axially opposite first and second end surfaces for facing said high and low pressure areas, respectively, and a radially inner peripheral surface for sealingly engaging with the cylindrical surface of the second apparatus part at a contact area and for defining with the cylindrical surface a first space widening for said contact area towards the low pressure area, the axial sectional view of at least part of the outer peripheral surface of the annular sealing member, which is adapted to come into contact with the compression ring, defining such convex contour that in an unstressed condition of the sealing member the radial distance between such part of the outer peripheral surface and the radially innermost part of the inner peripheral surface is decreasing in an axial direction towards the second end surface, the radius or radii of curvature of the convex shape being at least
  • WO 92/15807 discloses a sealing arrangement comprising an annular sealing member.
  • the sealing member has a radially inner peripheral surface which is divided into three axial sections, namely a first section adjacent to the high pressure area, an intermediate section forming a predetermined contact area, and a second section adjacent to the low pressure area.
  • the first section is defined by a stepped part having an inner diameter substantially exceeding the outer diameter of a cylindrical surface of a second apparatus part or piston rod.
  • the intermediate predetermined contact area is adapted to be in sealing engagement with the outer cylindrical surface of the piston rod, and the second section is a conical surface defining a widening or diverging space together with the outer cylindrical surface of the piston rod.
  • the borderline between the contact area and the second section of the inner peripheral surface part of the sealing member is defined by an annular edge.
  • a certain value for example in the order of 300 bar
  • the sealing member may tend to tilt about the said edge or to deform such that part of said second section of the inner peripheral surface part of the annular sealing member comes into contact with the outer cylindrical surface of the second apparatus part. This may result not only in a less efficient sealing effect, but also in so-called extrusion damages of the sealing member.
  • the radius or radii of curvature is/are within the range of from 0.15 to 1.5, preferably 0.2 to 0.6, and more preferably approximately 0.3 x the total axial length or width of the sealing member.
  • Figs 13-15 are fragmentary sectional views showing various embodiments of the part of the sealing arrangement indicated by the circle C in Fig 13, and
  • Fig 1 shows a known sealing arrangement of the type disclosed in WO 92/15807
  • the sealing arrangement shown in Fig 1 comprises a housing wall 10 having a through bore 1 1 formed therein
  • An annular channel or groove 12 is formed in the housing wall 10 and opens into the bore 11
  • a cylindrical rod 13, such as a piston rod, extends through the bore 1 1 and may perform a reciprocating axial movement in relation to the housing wall 10
  • the bore 11 extends between a high pressure side H and a low-pressure side L
  • the rod 13 may be a piston rod having its high pressure end connected to a double acting piston which is arranged within a cylinder (not shown) and the wall 10 may then be part of a cylinder housing
  • the radially outer peripheral surface of the annular sealing member 14 may be divided into two axial sections, namely a first section or a contact section 22 usually contacting the compression ring 15, and a second section or pressure relief section 23.
  • the axial contour of the outer peripheral surface of the sealing member defines an obtuse angle defining an annular edge 24 of the outer peripheral surface of the sealing member.
  • the contact section 22 extends substantially parallel with the central axis of the piston rod
  • the relief section 23 is converging with the axis 25 so as to define a space 26 between the sealing member 14, the compression ring 15 and the second end surface 17 of the channel 12.
  • the piston rod 13 is reciprocating in relation to the housing or wall 10 and the pressure difference between the high-pressure side H and the low-pressure side L is varying considerably. Therefore, deformation of the elastomeric compression ring or O- ring is varying all the time so that the available space 26 is more or less filled out by the compression ring. Because of the chamfer defined by the pressure relief section 23 the radially inwardly directed pressure applied to the sealing member 14 by the compression ring 15 is concentrated substantially opposite to the contact section 19 even when the compression ring 15 is pressed into the free space 26. It has been found, however, that the compression ring 15 has to be replaced relatively frequently in order to maintain the sealing characteristics of the sealing arrangement. This is probably due to the relative movements of the sealing member 14 and the compression ring 15 around the annular edge 24 between the contact section 22 and the relief section 23 of the outer peripheral surface of the sealing member 14.
  • the outer peripheral surface of the sealing member 14 is shown as a circular cylindrical surface It should be understood, however, that this surface could have any of the shapes shown in Figs 3-8, 10 and 11
  • the contour of the diverging section 20 of the inner peripheral surface of the sealing member 14 has a convex rounded contour selected so as to improve the sealing characteristics of the sealing member
  • the axial contour of the diverging section 20 is totally convex In the embodiment shown in Fig 15, however, the convex diverging section 20 merges into a concave section 32 which reduces the risk of extrusion of the material of the sealing member 14 into the space 21
  • Figs 16-19 are partial sectional views corresponding to those shown in Figs 2, 9 and 12 and illustrating further embodiments of the sealing arrangement according to the invention In the various embodiments similar parts have been designated the same reference numerals
  • FIG. 17 The embodiment illustrated in Fig. 17 is similar to that shown in Fig. 16. However, in Fig. 17 the annular sealing member 14 is divided into two mutually engaging annular parts 33 and 34, respectively. These parts may be made from different materials having different characteristics. Adjacent complementary surface parts of he annular parts 33 and 34 may be bound together by an adhesive layer 35 or by other means so as to form an integral sealing member 14, or the parts 33 and 34 may be separate.
  • the contact section 22 of the sealing member 14 being in contact with the compression ring 15 defines an annular pocket having an opening opposite to the first end wall 16 of the channel 12.
  • the radially outer peripheral wall of the sealing member may then contact or be positioned closely adjacent to the inner peripheral wall of the channel 12.
  • the embodiment of the sealing arrangement shown in Fig. 19 differs from that shown in Fig. 18 by the feature that in Fig. 19 the elastomeric compression ring shown in Fig. 18 has been replaced by a compression ring 36 having a U-shaped cross-section.
  • the compression ring 36 may be made from elastic metal, plastic or any other suitable material.
  • the compression ring 36 is mounted in the pocket formed in the sealing member 14 by the contact section 22 the legs of the U-shaped cross-section are resiliently pressed towards each other. This means that in its mounted condition the compression ring 36 is biasing the contact section 19 of the sealing member 14 into sealing engagement with the piston rod 13, and at the same time the outer peripheral surface of the sealing member is biased towards the adjacent inner peripheral surface of the channel 12.
  • annular channel or groove 12 in which the sealing member 12 and the compression ring 15 are arranged could be formed in the outer cylindrical surface of a piston or a similar member, and such piston could co-operate with a cylindrical wall or bore.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Seal Device For Vehicle (AREA)
  • Closures For Containers (AREA)
  • Gasket Seals (AREA)
  • Glass Compositions (AREA)
  • Secondary Cells (AREA)
PCT/DK2000/000305 1999-06-08 2000-06-07 A sealing arrangement and a sealing member therefor WO2000075539A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT00931046T ATE286220T1 (de) 1999-06-08 2000-06-07 Dichtungsanordnung und dichtungselement dafür
AU49119/00A AU4911900A (en) 1999-06-08 2000-06-07 A sealing arrangement and a sealing member therefor
JP2001501781A JP4588949B2 (ja) 1999-06-08 2000-06-07 シール機構およびそのためのシール部材
EP00931046A EP1196704B2 (en) 1999-06-08 2000-06-07 A sealing arrangement and a sealing member therefor
DK00931046.7T DK1196704T4 (da) 1999-06-08 2000-06-07 Tætningsarrangement og tætningsorgan dertil
HU0202318A HU222789B1 (hu) 1999-06-08 2000-06-07 Tömítőelrendezés és a tömítőelrendezésben alkalmazott tömítőelem
DE60017142T DE60017142T3 (de) 1999-06-08 2000-06-07 Dichtungsanordnung und dichtungselement dafür
PL352773A PL195565B1 (pl) 1999-06-08 2000-06-07 Zespół uszczelniający do uszczelniania przestrzeni pomiędzy obszarami wysokiego i niskiego ciśnienia i człon uszczelniający do tego zespołu uszczelniającego

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA199900809 1999-06-08
DKPA199900809 1999-06-08
DKPA200000551 2000-04-03
DKPA200000551 2000-04-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/197,814 Continuation US6316220B1 (en) 1996-07-05 1998-11-23 DNA encoding a transcription factor for an α-amylase promoter in filamentous fungi

Publications (1)

Publication Number Publication Date
WO2000075539A1 true WO2000075539A1 (en) 2000-12-14

Family

ID=26064705

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2000/000305 WO2000075539A1 (en) 1999-06-08 2000-06-07 A sealing arrangement and a sealing member therefor

Country Status (12)

Country Link
EP (1) EP1196704B2 (cs)
JP (1) JP4588949B2 (cs)
KR (1) KR100615662B1 (cs)
AT (1) ATE286220T1 (cs)
AU (1) AU4911900A (cs)
CZ (1) CZ300887B6 (cs)
DE (1) DE60017142T3 (cs)
DK (1) DK1196704T4 (cs)
ES (1) ES2233377T5 (cs)
HU (1) HU222789B1 (cs)
PL (1) PL195565B1 (cs)
WO (1) WO2000075539A1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016023946A1 (de) * 2014-08-15 2016-02-18 Trelleborg Sealing Solutions Germany Gmbh Dichtungsanordnung mit dämpfungsglied

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012036962A (ja) * 2010-08-06 2012-02-23 Aisin Aw Co Ltd 無段変速機のシール構造
ITVR20110171A1 (it) * 2011-08-22 2013-02-23 Alberto Bordignon Molla a fluido
CN103062408A (zh) * 2013-01-05 2013-04-24 太仓市明宇密封件有限公司 阶梯形密封件及阶梯形同轴密封件
CN107076305B (zh) * 2014-12-12 2019-05-03 Nok株式会社 密封装置
JP6559883B2 (ja) * 2015-05-01 2019-08-14 サン−ゴバン パフォーマンス プラスティクス エルプラスエス ゲーエムベーハー シールリング
CN110186619B (zh) * 2018-11-30 2021-06-29 中航光电科技股份有限公司 密封圈试验夹具

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1490716A (en) * 1920-11-06 1924-04-15 Gen Electric Packing
DE2325000A1 (de) * 1973-05-17 1974-12-05 Busak & Luyken Kg Dichtung fuer hydraulische kolben oder kolbenstangen
DE3026063A1 (de) * 1980-07-10 1982-02-04 Busak + Luyken GmbH & Co, 7000 Stuttgart Dichtung fuer hydraulische kolben und kolbenstangen
DE3521525C1 (de) * 1985-06-15 1986-11-27 Busak + Luyken GmbH & Co, 7000 Stuttgart Dichtungsanordnung
DE3835505A1 (de) * 1988-10-19 1990-05-03 Ammann Siegfried Abdichtung fuer hin- und hergehende kolben, plunger, stangen, zylinder und stangenlager
EP0418732A1 (de) * 1989-09-16 1991-03-27 Busak + Luyken GmbH & Co. Dichtungsanordnung
WO1991010088A1 (en) * 1989-12-28 1991-07-11 W.S. Shamban & Company Spring energized seal assembly
WO1992015807A1 (de) 1991-02-27 1992-09-17 Busak + Luyken Gmbh & Co. Dichtungsanordnung
US5249813A (en) * 1991-07-05 1993-10-05 Dixon Resine S.P.A. Sealing ring structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7831410U1 (de) * 1978-10-21 1984-09-20 O & K Orenstein & Koppel Ag, 1000 Berlin Dichtung für hin- und hergehende Maschinenelemente
JPH087174Y2 (ja) * 1990-10-23 1996-03-04 カヤバ工業株式会社 シール装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1490716A (en) * 1920-11-06 1924-04-15 Gen Electric Packing
DE2325000A1 (de) * 1973-05-17 1974-12-05 Busak & Luyken Kg Dichtung fuer hydraulische kolben oder kolbenstangen
DE3026063A1 (de) * 1980-07-10 1982-02-04 Busak + Luyken GmbH & Co, 7000 Stuttgart Dichtung fuer hydraulische kolben und kolbenstangen
DE3521525C1 (de) * 1985-06-15 1986-11-27 Busak + Luyken GmbH & Co, 7000 Stuttgart Dichtungsanordnung
DE3835505A1 (de) * 1988-10-19 1990-05-03 Ammann Siegfried Abdichtung fuer hin- und hergehende kolben, plunger, stangen, zylinder und stangenlager
EP0418732A1 (de) * 1989-09-16 1991-03-27 Busak + Luyken GmbH & Co. Dichtungsanordnung
WO1991010088A1 (en) * 1989-12-28 1991-07-11 W.S. Shamban & Company Spring energized seal assembly
WO1992015807A1 (de) 1991-02-27 1992-09-17 Busak + Luyken Gmbh & Co. Dichtungsanordnung
US5249813A (en) * 1991-07-05 1993-10-05 Dixon Resine S.P.A. Sealing ring structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016023946A1 (de) * 2014-08-15 2016-02-18 Trelleborg Sealing Solutions Germany Gmbh Dichtungsanordnung mit dämpfungsglied
JP2017526872A (ja) * 2014-08-15 2017-09-14 トレルボルグ シーリング ソリューションズ ジャーマニー ゲーエムベーハーＴｒｅｌｌｅｂｏｒｇ Ｓｅａｌｉｎｇ Ｓｏｌｕｔｉｏｎｓ Ｇｅｒｍａｎｙ ＧｍｂＨ 減衰要素を有するシール装置
US10690213B2 (en) 2014-08-15 2020-06-23 Trelleborg Sealing Solutions Germany Gmbh Seal arrangement with damping element

Also Published As

Publication number Publication date
KR100615662B1 (ko) 2006-08-25
CZ300887B6 (cs) 2009-09-02
DK1196704T3 (da) 2005-02-07
ATE286220T1 (de) 2005-01-15
DE60017142T3 (de) 2010-08-12
JP4588949B2 (ja) 2010-12-01
KR20020022133A (ko) 2002-03-25
PL352773A1 (en) 2003-09-08
CZ20014396A3 (cs) 2002-05-15
ES2233377T5 (es) 2010-05-31
AU4911900A (en) 2000-12-28
DE60017142T2 (de) 2005-09-29
HU222789B1 (hu) 2003-10-28
EP1196704B1 (en) 2004-12-29
EP1196704B2 (en) 2010-01-20
DK1196704T4 (da) 2010-05-17
HUP0202318A2 (en) 2002-11-28
JP2003501598A (ja) 2003-01-14
ES2233377T3 (es) 2005-06-16
PL195565B1 (pl) 2007-10-31
DE60017142D1 (de) 2005-02-03
EP1196704A1 (en) 2002-04-17

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